Question

In case of water from `0` to `4^@C`
(i) Volume decreases and density of water is maximum at `4^@C`
(ii) `DeltaW` will be negative, since volume decreases
(iii) `C_p gt C_V`
(iv) `C_P lt C_V`
A. (i),(ii)
B. (ii),(iii)
C. (iii),(iv)
D. (i),(ii),(iv)

Answer 1

Correct Answer - D
`DeltaQ=DeltaU+DeltaW`
since `DeltaW` is `-ve` i.e., `DeltaQ lt DeltaU`
`nC_PDeltaT lt nC_VDeltaT`
`C_P lt C_V`